31032223013 has 12 divisors (see below), whose sum is σ = 34124441484. Its totient is φ = 28199001600.

The previous prime is 31032222989. The next prime is 31032223031.

31032223013 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 13322468929 + 17709754084 = 115423^2 + 133078^2 .

It is not a de Polignac number, because 31032223013 - 2²⁸ = 30763787557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31032223063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234245 + ... + 341957.

It is an arithmetic number, because the mean of its divisors is an integer number (2843703457).

Almost surely, 2^31032223013 is an apocalyptic number.

It is an amenable number.

31032223013 is a deficient number, since it is larger than the sum of its proper divisors (3092218471).

31032223013 is a wasteful number, since it uses less digits than its factorization.

31032223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110116 (or 110105 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The spelling of 31032223013 in words is "thirty-one billion, thirty-two million, two hundred twenty-three thousand, thirteen".